Thrashing-machine attachment



March 25 1924,,

G. HOLL INGER- THRASHING MACHINE ATTACHMENT Filed July 28 Patented 25, 1924.

GORDON HOLLINGEB, OF ST. JACOBS, ONTARIO, CANADA.

TI-IRASHING-MACHINE ATTACI- IVIEN'I.

Application filed July 28, 1922.

To all whom it may concern:

Be it known that I, GonDoN IIoLL-rNenn, of

St. Jacobs, in the county of Waterloo, Province of Ontario, Canada, a subject of the a King of Great Britain, have invented cer tain new and useful Improvements in 'Ihrashing-liiachine Attachments, of which the following is a specification.

This invention relates to thrashing machines provided with pneumatic stacking devices.

In my co-pending United States applica tion No. 552,329, filed April 13th, 1922, I have shown one satisfactory method of attaining the desired result which, however, was open to the objection that, unless carefully regulated, in freezing weather an accumulation of ice might be formed on the fan or fan casing.

I have now proved by experiment that a satisfactory mingling of the water with the straw can be obtained by introducing water into the air current created by the fan of the pneumatic stacker at a point or points such that the air and water will pass into or through the straw in such a way as to carry the moisture evenly to all parts of the straw. One such point is at the opening into the fan casing where the air and straw are drawn in together, and another and preferable point is at the throat where the discharge pipe connects with the fan casing. As the throat is tapered and the straw naturally tends to hug the rear side of the throat, an air space, more or less free of straw, tends to form at the forward side of the throat. Air in this space is travelling at a high velocity and, as the throat contracts, it necessarily passes into the travelling straw carrying with it any water which has been discharged into it.

The invention is hereinafter more fully described and is illustrated in the accompanying drawings in which- Fig. 1 is a side elevation, of part of a thresher provided with my improvements; and

Fig. 2 is a cross section through part of the same.

In the drawings like numerals of reference indicate corresponding parts in the different figures.

1 is part of the frame of a thresher and 2 one of the shafts of the same. This shaft may be any shaft which is constantly rotating when the thresher is in operation and is used for a purpose which will hereinafter Serial No. 578,267.

appear. In the present case the shaft chosen is the fan shaft.

3 is the casing of the pneumatic stacker, which, as is now usually the case, is built 60 into the machine. This fan casing is provided with the usual discharge pipe -1- which is connected with the casing by a tapered throat 12. In the casing is located the fan 5, which is secured to the fan shaft 2, which is suitably ournalled at the ends of the casing. Through the opening 13 in the inner end of the casing the air and straw are drawn into the fan casing.

7 is a pump, preferably of the centrifugal type. 8 is a suction. pipe, which will be led to any suitable source of water supply. 10 is the discharge pipe of the pump which leads to the tank 14, which tank is preferably provided with an overflow pipe 6. 9 is a discharge pipe which leads from the tank 14 to one of the passages of the pneumatic straw stacker through which air and straw are passing.

I show the pipe as branched, one branch 15 leading to the inlet passage 16 through which air and straw pass into the fan casing, and the other 17 to the inner side of the throat 12 of the discharge pipe 4 and adapted to discharge therein substantially at right angles to its axis. See Fig. 1. A control valve 18 is provided in each branch so that water may be admitted at either point or both, though it is deemed preferable that most of the water shall be admitted to the throat of the discharge pipe. The pump is so proportioned and its speed adjusted as to supply just the amount of water which is found desirable, though the supply may be regulated also within certain limits by means of the valves 18. I find in practice when water is admitted at the points above described that it is practically all taken up by the straw and none left to accumulate on the parts of the thresher. I further find that w the moisture is very easily taken up by the straw and without any excess in any part which would cause heating and rotting.

What I claim as my invention is 1. A thrashing machine provided with pneumatic straw stacking means including a fan, fan casing, air and straw inlet and outlet passages in combination with a water supply pipe adapted to discharge into said passages, and means for varying the propor- 3m tion of water discharged into the respective passages.

2. A thrashing machine provided with charge into the inlet-passage adjacent the pneumatic straw stacking means including a fan casing; and means for varying the pro- 10 fan, a fan casing, an inlet passage to the fan portion of Water discharged at the two casing, and discharge pipe connected with the points.

5 casing by a tapered throat in combination Signed at Kitchener, Ontario, this 7th day with a Water supply pipe adapted to disof July, 1922. charge into said throat at the forward side thereof; a Water supply pipe adapted to dis GORDON HOLLINGER. 

